⁵⁰Cr   ⁵¹Cr   ⁵²Cr   ⁵³Cr   ⁵⁴Cr

Go to isotope

Total MACS at 30keV:

4.8

±

1.2

mb

Cross sections do not include stellar enhancement factors!

Version	Total MACS [mb]	Partial to gs [mb]	Partial to isomer [mb]
1.0	4.8 ± 1.2	-	-
0.0	6.7 ± 1.6	-	-

(Version 0.0 corresponds to Bao et al.)

New rec. value and MACS vs. kT table is average from evaluated libraries (endfb71,tendl15,jendl40). Assuming 25% uncertainty (Cp. to uncertainty of 17% in KAM77b). Note that there is a large discrepancy (factor f= 1.45) between the data from KAM77b and the values from the evaluated libraries (for 50,53,54Cr). More investigation of the discrepancies needed!
Last review: May 2016

original	renorm.	year	type	Comment	Ref
6.7 ± 1.6		1977	c,2	Linac, TOF, 6Li, Au+Ti:Sat., k=1.0737	KAM77b
4.8		2015	e	TENDL-2015 using the TALYS code	tendl15
4.8		2011	e	ENDF/B-VII.1	endfb71
4.7		2011	e	JENDL-4.0	jendl40
7.7		2006	e	ENDF/B-VII.0	endfb7
7.7		2004	e	JEFF-3.1	jeff31
4.5		1971	e		AGM71
11.5		2005	t	MOST 2005	Gor05
12.2		2002	t	MOST 2002	Gor02
9.4		2000	t	NON-SMOKER	RaT99
7.2		1978	t		WFH78

Original:MACS [<σ v>/v_T] (mb) for kT=30 keV, based on the published cross sections except where indicated otherwise.
Renorm:MACS [<σ v>/v_T] (mb) for kT=30 keV for which the reference or standard cross section was meanwhile improved.
Type: The letters and numbers in the column labelled 'type' give information on how the cross section has been obtained:

c	Directly quoted from the reference itself
2	Including k from Ref. ABM82, where k is a correction factor which has been applied to the originally reported cross section
e	Evaluated value taken directly from the reference
t	Theoretical value

Energy	5keV	8keV	10keV	15keV	20keV	25keV	30keV	40keV	50keV	60keV	80keV	100keV
MACS	8.4	-	8.6	6.8	5.6	5.0	4.8 ± 1.2	4.5	4.5	4.4	4.3	4.2
Xfactor	1.00	1.00	1.00	1.00	1.00	1.00	1.00	1.00	1.00	1.00	1.00	1.00
SEF	1.00	1.00	1.00	1.00	1.00	1.00	1.00	1.00	1.00	1.00	1.00	1.00
Rate	5.01	-	7.26	7.03	6.68	6.67	7.02	7.60	8.49	9.10	10.26	11.21

MACS:
Reference: endfb71,tendl15,jendl40
Procedure: 'e+t' (The MACS from kT=5 keV to 100 keV are derived from calculated cross sections, which are then normalized to experimental data, e.g. to the values at kT=25 keV obtained in activation measurements. In these cases the uncertainties should be linearly increased below 25 and above 30 keV to reach about 30% at the extreme kT values.)
Year: 2016

X-factor:
Reference: Rau12
Year: 2012

SEF (Stellar enhancement factor):
Reference: Rau09
Year: 2009
Comment:

Rate:
Reaction rate N_A<σv> given in 10⁵ cm³/mole/s, including SEF

	54Fe 5.845 27.6 mb 55Fe 2.74 a 75 mb, β+ 56Fe 91.754 11.7 mb 57Fe 2.119 40 mb 58Fe 0.282 12.1 mb 53Mn 3.74 Ma β+ 54Mn 312.15 d β+ 55Mn 100 39.6 mb 56Mn 2.58 h β- 57Mn 1.42 m β- 52Cr 83.789 8.8 mb 53Cr 9.501 58 mb 54Cr 2.365 6.7 mb 55Cr 3.50 m β- 56Cr 5.94 m β- 51V 99.75 38 mb 52V 3.74 m β- 53V 1.60 m β- 54V 49.80 s β- 55V 6.54 s β- 50Ti 5.18 3.6 mb 51Ti 5.76 m β- 52Ti 1.70 m β- 53Ti 32.70 s β- 54Ti 1.50 s β-

Style: (S, M, L, XL or Alberto)